Peak File regenerating everyday

I'm working on a documentary. Our team is using Productions with the Production files and all media stored on a local NAS (Avid NEXIS). We are in Premiere 25.2.1. I am cacheing to the default folder (Users/[user name]/Library/Application Support/Adobe/Common) on a 2023 M2 Ultra Mac Studio with 192 GB of RAM and 1 TB of internal storage. My media cache is set to "not delete files automatically." And, under audio settings, I have "Generate audio waveforms automatically during import," de-selected. 

Everyday when I open any project in the production, I notice my visible waveforms, created the day prior, are gone. When I look into my cache folder at the corresponding .PEK file, I can see it there, in the dated folder from the day prior, along with all the other .PEK files—all mixed media sources—that are also not showing visible waveforms in Premiere where they were yesterday. If I select these clips and "Generate Audio Waveforms," new .PEK files will be creatd in a new folder in the cache with today's date; ie, "Peak Files/2025-07-23." But the old .PEK files will still be there in the folder from yesterday. And tomorrow, all visible waveforms will be gone again from the project and I will have to re-"Generate Audio Waveforms" to create new, identical .PEK files in a folder with tomorrow's date. I am using no plug-ins. And I have cleared the cache and reset preferences twice already. This problem persists.

Any thoughts?